Is this reef safe?

[Wolf89]

Is this reinforced fiberglass rod (driveway maker) reef safe? It is for connecting my aquascape. I obviously would not use the reflective part. Thanks
https://m.lowes.com/pd/Hillman-Sign-Center-48-in-Blue-Driveway-Marker/3036678

 

[Jon Fishman]

Yes. Fiberglass driveway markers are commonly used.

 

[Gareth elliott]

I dont think there is anything that is going be harmful from it. Perhaps a rinse to clear any manufacturing debris.

 

[Flippers4pups]

I've used them with no problems.